x86/cpu: improve percpu support

- declare CPU descriptors as percpu variables
- make the percpu segment register point to the percpu area instead of
  the CPU descriptor
- remove the ugly accessors for the local CPU descriptor, pmap and TCB
  and use percpu variables for them instead
- implement the cpu_local accessors as described in the percpu
  documentation

1 files changed, 1 insertions, 0 deletions

diff --git a/kern/percpu.c b/kern/percpu.c
index 99398e0a..aab9d064 100644
--- a/kern/percpu.c
+++ b/kern/percpu.c
@@ -59,6 +59,7 @@ percpu_setup(void)
 
     percpu_areas[0] = (void *)va;
     memcpy(percpu_area(0), &_percpu, percpu_size);
+    cpu_fixup_bsp_percpu_area();
 }
 
 int __init